Creating a bevel car decal like effect?
If you set your curve to full, add some depth and leave the resolution at 0 it seems that it will just create the look you are going for. You need to set the shading to flat so you can see the sharp edge.



There is also a star curve that you can tweak with the curve settings to get the desired look of a Mercedes star. Not sure it will yield the perfect results for any shape, but you could try.

Settings for star: